Stopper and dropper.



R. L. LARSON.

STOPPER AND DROPPER.

APPLICATION FILED FER-26,1910.

Patented -s e t.v6, 1910.. Y

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G Her/nu e,

UNITED s raps ra'rrzur RICHARD L. Lesson, or MINNEAPOLIS, Minn-risers.

srorrsa AND enema.

Specification of Zetters Patent. Patgntedis lifi;

- Application filed February at, 1910. Serial No. 546,157.

To all wlwm it mag concern:

Be it known that I, RICHARD L. LARSON,

a citizen of the United States, residing at Minneapolis, 1n the county of Hennepin and State of Minnesota, have invented certain.

it may be used as a dropper to permit a small quantity of liquid to escape from the bottle, a drop -at a time.

Another object is to produce a stopper which will be of an unusual character, and which will also be such that this unusual nature may be detected through the sense of touch, so that when the stopper is used for poisonous liquids, which are those most generally measured by drops, no mistakes can be made when handling bottles in the dark.

Other objects and advantages will be apparent from the following description, and it will be understood that changes in the specific structure shown and described may be made within the scope of the'claims without departing from the spirit of the invention.

In the drawings .rming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views, Figure l is a perspective "view of the present stopper engaged in the neck of a bottle, Fig. 2 is a vertical section through the stopper in its normal position. Fig. 3 is a view similar to Fig. 2. showing the diaphragm depressed to form a dropper.

Referring now to the drawings, there is shown a stopper which is formed of rubber, and which includes a body portion 5 arranged for engagement in the n'ecko'f a bottle. This body portion is of considerable thickness, but has a central passage Gformed therethrough. At the. upper edge oi the body portiom-there i formed tn-outwardly pro ecti ng circumscribing rib 7 which is an ran ed to en age the mouth flan e of the s g s bottle to limit the inward movement of the body portion. The up r -ortiono-f the passsage 6 is enlarged; as s own at 8, so that the integrally with these upper edges there-is-a diaphragm 9 curved upwardly aiidi extendportion 5 at their upper edges are reduced In thickness, and formed i-ng over the upper endqofthe body porti on'. .'l"herev isthus formed a chamberflQ in the upper portion ofthe stopper. At, one

of this chamber, there is anenlargemenh 11 which projects upwardly toward the dia- '-phra'gm 9, and which forms a continuation of the adjacent surface of the body portion 5. At the point atwhichthisenlargement 11 meets the edge portion of theydia hraglrn;

9, 'a slit extends inwardlyand downwar into the enlargement as shown at 12- and this enlargement thus forms what is i ecta thickened tongue extendingupward y over the inner-face of the dia hragm. 1 v I 13 opens at its outer, end through therib 7, and at its inner end communicates with .the slit 12 at the lower, endt-hereof, and, as. will be observed, the tongue 11 thus normally closesv the inner end of the passage 13. As'. shown in Fig. 3, however, the arrangement is such that, when. the diaphragm 19 is de= pressed, the portion adjacent, to the tong'l'ie 1'1 is moved outwardly, so that t-he,slit.;12

is spread and liquid is permitted, to pass} through the passage 13. I,

When using thedevice, the bottle 15 tilted until a portion of the contents thereoi runs into the chamber 10. The diaphragm ,9 is thendepressed and moved laterally, as stated,;

until it engages. the innermost ,portion o f the tongue 11. There is then .a small con-*- .fined space shown in Fig. 3' at A,.with which Pass ge the passage 13 communicates, and the finger .1

of theoperator may be pressed against that portion of the diaphragm whichfornisthis space A to force the liquid within thisspace through the passa e 13 a drop at ii-tune.

When the finger o the operator is removed,

the parts will return to their norm a l. pos 1 tion, and the engagement of thetongue '11- 9 will close the passage 13.

lVhat is claimed is I againstthe adjacent wall of; the diaphragm ing ani'ntegra l-ly formed" diaphragm entend ing over the upperend of theibod y r I to] form a chamber communicat'n'gw' th the passage said hodyportionhaying alto -'form'ed integrally. therewith atone resting against the adjacent por diaphragm. d extending upwa'rdl chamber, said body portlon haying? y sp l ngswe tenersre its inner end-,wit the portion of; t

phrag-m against which the tongue r'e stsisaid tlon diaphragm being movable away from the tongue to open the passage and to'bring a portion thereof into engagement with the tongue to produce a confined space commun1 eating with the passage.

2, A bottle stopper comprising a body portion arranged for engagement in the neck ofa bottle, and provided with a longitudinal passage therethrough, an upwardly curyed diaphragm connected with the upper edge of the body portion and extending over the passage to form a chamber, said body porsage.

3. A bottle stopper comprising a body portion arranged for engagement in the neck of a bottle and having a longitudinal passage formed therethrough, a diaphragm connectedwith the body portion and extending over the upper end of the passage to form a chamber, said body portion having a laterally opening passage communicating with eeegser the chamber and a tongne carried by the body portion and extending upwardly within the chamber and lying-normally over the inner end of the second named passage to close the latter, said diaphragm being depressible to engage the tongue and to move the portion adjacent to the second named passage-away from the tongue to open the passage. 7

.4. A. bottle stopper comprising a body portion arranged for engagement in the neck of a bottle and having a longitudinal passage fOl'll'lEd therethrough, a diaphragm connected with the body portion andextending over the upper end of the passage to form a chamber, said body portion having a laterally opening passage communicating with the chamber, and a tongue carried by the body portion and extending upwardly within the chamber and lying normally over the inner end of the second named passage to close the latter, said diaphragm being movable to move'the portions adjacent to the passage away from the tongue to open the passage.

In testimony whereof I aiiiX my signature, in presence of two witnesses.

RICHARD L. LARSON.

Vitnesses:

S. P. lVILsoN, Jnnmn ANDERSON. 

